Automobile jacking device



Oct. 27, 1931.A J. F. TooMEY ETAL AUTOMOBILE JACKING DEVICE Filed Sept.13. 1929 Z/ LY v nvmtoz yA-WM. 7'. Dmm y M i. menta.,

3513 MW @lum/mmf 30 showing the thrust-rod in cross section.

Petented Oer. 27, 1931 PATENT OFFICE UNITED STATES r. roomy, onnnw Yoan,am) .Tosnrx r. ucNALLY, ornnooxmm, Naw Yonx v .'Aurouonrnn Jacxmc DavrcnAppuemen med september 1s,"1s2s .^"ser1a1ne. 392,458.

This invention relates more es eciallyto lifting jacks for automobilesand as for its objectto rovide a device of this character of improvconstruction to adapt it to engage g the art to which it is applied witha positive y interlocking connection.

One of the objects of our invention is ,to provide a lifting jack of thecharacter herelnafter described with an improved interv lockingconnection of which all of the parts Certain subsidiary eatures ofconstruction y au are described in'the followin specification andrecited in the appended c aims in reference to the accompanying drawingswhich show a preferred embodiment of our invention.

j. In the drawings Figure 1 is a combined side elevation and verticalsection of our improved device as applied to a vehicle such as anautomobile.

Fi 2 isa top plan view of the same Referring more particularly to thedrawings, in the embodiment of our invention shown therein, an extension1 of the side bar of an automobile is connected by a pin 2 with one endof a sprin 3. A transverse buffer bar 4 may be hel in a recessed bracket5 by means of a flat plate or flange of a socket member 6 which issecured to the bracket 5 by means of screws 7. The socket member 6 isprovided with a socket opening'iS around the bottom end of which extendsan annular pasrt-spherical bearing) surface 9. As shown t inFigure 2,.the Y racket or socket member 6 is also provided with alongitudinalslot 10 which opens inwardly into the socket opening 8 andoutwardly through the outer edge of the bracket 6. Movable laterallythrough `the slot 10 is the up r shank ortion 11a of a thrust rod 11whlc is provi ed on its lower end with exterior screw-threads 12. Saidvided with an annular 27 which is interposed between said ball an thrustrod is thus adapted to be threaded into matching screw-threads 13 whichare formed mteriorly in the upper portion of a tubular base or pedestal14, saidbase or pedestal bein provided with a bottom flange or foot 15an a top flange or shoulder 16, Secured to the lower end of thethrust-rod '11 by means of a pin 17 isa collar 18 which is adapted tocome into abutment with an annularshoulder 19 formed on the inner' wallofthe tubular pedestal 14 at the lower end of screw-threads 13. Theupper end 11a ofthe thrust-rod is made with a reduced diameter and atthe top carries a cross-bar or handle 20 which is releasably securedthereto b a pin 21. A circular bearing block 22 is swlveled upon thereduced `upper end of thrust-rod 11 and provided ex.

` teriorly with a part-spherical bearing surface 22a in movableengagement with the bearing surface 9 ofthe socket member 6..

Suitable and effective means for releasably retaining the bearing blockin bearing engagement with the socket member 6 may e provided b means ofa tubular neck or extensionk 23 w ich in its outer wall is progroove 24.Seated in the annular oove 24 1s a ball 25, said ball being movab yaxially within a socket-opening .26 under the pressure of a coil spring80 a plug 26a which lis threaded into anfenlarged bore at the inner end`of socket' 26. The threaded plug26a may be adjusted axially forregulating the pressure of spring 27.

The ball or dog 25 is retained agamst outward dis lacement from itssocket-opening by upsettln the metal around the outer edge of Isaid socet. The tubular neck or extension 23 of the bearing-block 22 is madesomewhat smaller in diameter than the socket-o ening 8 for permitting aslight an`v gular a justment of t e thrust-rodfll. Said bearing block 22is provided with an annular recess 28 withln which are mounted balls 27said balls being confined between the 95 annular race-way at the innerend of said recess and a ball bearing ring 30 which is secured inposition within the recess 28 b upsetting the lower annularedge of thearing block into engagement with the'ball-bearing 100 ring 30. Slidableonto and oi of the reduced upper end of the thrust rod, is a collarsleeve 31, the cross-bar or handle being first removed for this purpose.If desired, said collar or sleeve may be provided with oppositecoaxially-arranged openn 31a in its cylindrical wall to bar 20 aftershlfting the sleeve to dotted-imc osition shown inFigure 1. It will beunerstood, of course, that one or more of these collars may be employedto secure the desired vertical position of the bearin block 22. In thisway, the ljack may be a apted for different uses such as in the liftingof various makes of cars upon which corresonding parts are arranged atdifferent heights from the ground.

The advantages of our improved construction will now be readilunderstood and briefly explained are as ollows. When for any reason itis desired to elevate a part such as one end of the side bar 1 of anautomobile, the thrust-rod 11 is screwed into the base or pedestal 14for a sufficient distance to permit said thrust rod to be movedlaterally through the slot 10. With the pedestal resting upon theground, a rotation of the thrust-rod at first elevates the bearingblock22 into bearing engagement with .the socket-member 6 and then producesan upward lift to the art to be lifted. During this movement, `t e`part-spherical bearing surfaces 9'and 22a, in cgnjunction with th'ereduced size of tubular neck 23, permits an angular adjustment of thejack. It will be seen that all of the parts related to the lifting jackare permanently connected either to the vehicle frame or to theliftingpj ack proper in `such a way as to practically eliminate alldanger of losing any ofthe essential parts of the device. .The tubular-pedestal 14 is provided With a bore 32 ofuniform diameter extendingfromthe lower end of the screw threads 13 through the bottom end thereof topermit the attachment and removalof co1- lark18 for assembling andIdisassembling the )ac f 1. In a device of the character described, the1combination of a socket member provided with a slot therethrough `onone side, an abutment member provided with a neck presented upwardlyinto said socket member, an axially-movable thrust rod rotatable in saidabutment member, and means interengaging between said abutment memberand thrust rod for rotatably holding the former against axialdisplacement on the latter, the diami eter of said thrust-rod being lessthan the width of said slot for permitting the lateral ably engagingsaid abutment member.

2. In a device of the character described, the combination of a bracketadaptedto enrmit the insertion of crossgage a' with a socket opening, anabutment member movably mounted in said socket opening, ai. pedestal,and a thrust rod threaded into said pedestal and movably engaging saidabutment member.

3. In a device of the character described, thecombination of a bracketada ted to be secured to a part to be lifted, said bracket beingprovided with a socket opening extending therethrough and with a slotopening outwardly `through one side of said socket opening, an abutmentreleasably mounted in said socket opening and having a diameter greaterthan the width of said slot, a pedestal,

and a thrust rod threaded into said pedestal and movably engagin saidabutment, said thrust rod having a iameter less than the width of saidslot.

4. Ina device of the character described,785

the combination of a bracket adapted to be secured to a part to belifted, said bracket being provided with a socket opening and with arounded annular bearing surface extending around and at the bottom ofsaidrg0 socket opening, an upwardly contracted bearing block presentedupwardly through the lower end of said socket opening and bearingagainst said rounded annular bearing surface, an axially movable thrustrod-iiour-i5 nalled in said abutment. and a pedestal with which saidthrust-rod hasV threaded connect1ons.

5. In a lifting jack,- the combination of a 4 pedestal provlded with anupwardly-presentl 100 ed abutment. a thrust-rod threaded into saidabut-ment, a bearing block swiveled 'upon said thrust-rod, and a sleeveinterposable between said bearing block and the upwardly-present; 1,05

bearing surface adapted to engage the part '11 to be lifted, saidthrust-rod being freely rotatable 1n sald bearing block, a bearing Aringmounted upon said'thrust-rod and rotatably l `engaging said bearingblock, and means'for 1-15' holding said bearing ring against axialdisplacement on said thrust rod.

7. A lifting jack vfor vehicles, said lifting -I jack comprising abearing block adapted to be detachably connected to the vehicle frame,ign

a thrust-rod freely rotatable in said bearing block,l a bearing ringmounted on said thrustrod and rotatably engaging said bearing block withan upward thrust thereon, said -bearing ring and thrust-rodbeingprovided retraction of said thrust rod, said thrust-rod bemgprovided with a thrust-bearing. rotatnections with said pedestal wherebyan axial 13 movement of the thrust-rod may be produced by a rotarymovementl with respect to said pedestal.

8. In a device of the character described, the combination of a bracketarm provided with a socket opening extending therethrough, a bearingblock removabl mounted in said socket opening, a thrust ro rotatablymounted in said bearing block, a pedestal into which said thrust-rod isthreaded, and means interengaging between said bearing block andthrust-rodfor permitting relative rotation and preventing relative axialmovement of the thrust-rod in said'bearngblock.

9. In a device of the ch'aracterdescribed, the combination of apedestal, a thrust-rod threaded into said pedestal and movable axiallyby its threaded connection therewith,

a bearing rin mounted on said thrust-rod and held against axial movementthereon, and a bearing block freely 'journaled-on said thrust-rod androtatably supported by said bearing ring.

10. In a device of the character described, the combination of a bracketadapted to be secured to a part to be lifted, said bracket bei ingprovided with a socket opening, a bearing lock provided with anupwardly-contracted portion adapted to be removably inserted into saidsocket opening, a thrust-rod rotatable freely in said bearing block, apedestal into which said thrust-rod is threaded,

a bearing ring on said thrust-rod for Irotatably engaging said bearingblock, said bearing ring and thrust rod being provided withinterengaging portions for preventingirelative axial displacement, and asleeve interposable between said-interengaging' portions of thethrust-rod and bearing ring for p ositioning'the bearing ring at ahigher point on said thrust-rod.

11. In a device of the character described, v

the combination of abracket adapted to be secured to a part to belifted, and having a socket provided with a vertical slot openingoutwardly therefrom, a bearing block mounted in said socket, athrust-rod journalled in 'said bearing block, said thrust-rod being ofsmaller diameter than the width of said vertical slot, a pedestal intowhich the lower end of said thrust-rod is threaded, and a journaling suport for said bearing block mounted on sai thrust-rod, said bearin blockbeing removable axially from said soc et to permit a lateralwithdrawal'of the thrust-rod.

JEREMIAH F. TOOMEY. JOSEPH F. MONALLY.

